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PHP Cross Reference of MyBB 1.8.39 |
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1 <?php 2 /** 3 * MyBB 1.8 4 * Copyright 2014 MyBB Group, All Rights Reserved 5 * 6 * Website: http://www.mybb.com 7 * License: http://www.mybb.com/about/license 8 * 9 */ 10 11 // Set to 1 if receiving a blank page (template failure). 12 define("MANUAL_WARNINGS", 0); 13 14 // Define Custom MyBB error handler constants with a value not used by php's error handler. 15 define("MYBB_SQL", 20); 16 define("MYBB_TEMPLATE", 30); 17 define("MYBB_GENERAL", 40); 18 define("MYBB_NOT_INSTALLED", 41); 19 define("MYBB_NOT_UPGRADED", 42); 20 define("MYBB_INSTALL_DIR_EXISTS", 43); 21 define("MYBB_SQL_LOAD_ERROR", 44); 22 define("MYBB_CACHE_NO_WRITE", 45); 23 define("MYBB_CACHEHANDLER_LOAD_ERROR", 46); 24 25 if(!defined("E_RECOVERABLE_ERROR")) 26 { 27 // This constant has been defined since PHP 5.2. 28 define("E_RECOVERABLE_ERROR", 4096); 29 } 30 31 if(!defined("E_DEPRECATED")) 32 { 33 // This constant has been defined since PHP 5.3. 34 define("E_DEPRECATED", 8192); 35 } 36 37 if(!defined("E_USER_DEPRECATED")) 38 { 39 // This constant has been defined since PHP 5.3. 40 define("E_USER_DEPRECATED", 16384); 41 } 42 43 class errorHandler { 44 45 /** 46 * Array of all of the error types 47 * 48 * @var array 49 */ 50 public $error_types = array( 51 E_ERROR => 'Error', 52 E_WARNING => 'Warning', 53 E_PARSE => 'Parsing Error', 54 E_NOTICE => 'Notice', 55 E_CORE_ERROR => 'Core Error', 56 E_CORE_WARNING => 'Core Warning', 57 E_COMPILE_ERROR => 'Compile Error', 58 E_COMPILE_WARNING => 'Compile Warning', 59 E_DEPRECATED => 'Deprecated Warning', 60 E_USER_ERROR => 'User Error', 61 E_USER_WARNING => 'User Warning', 62 E_USER_NOTICE => 'User Notice', 63 E_USER_DEPRECATED => 'User Deprecated Warning', 64 E_RECOVERABLE_ERROR => 'Catchable Fatal Error', 65 MYBB_SQL => 'MyBB SQL Error', 66 MYBB_TEMPLATE => 'MyBB Template Error', 67 MYBB_GENERAL => 'MyBB Error', 68 MYBB_NOT_INSTALLED => 'MyBB Error', 69 MYBB_NOT_UPGRADED => 'MyBB Error', 70 MYBB_INSTALL_DIR_EXISTS => 'MyBB Error', 71 MYBB_SQL_LOAD_ERROR => 'MyBB Error', 72 MYBB_CACHE_NO_WRITE => 'MyBB Error', 73 MYBB_CACHEHANDLER_LOAD_ERROR => 'MyBB Error', 74 ); 75 76 /** 77 * Array of MyBB error types 78 * 79 * @var array 80 */ 81 public $mybb_error_types = array( 82 MYBB_SQL, 83 MYBB_TEMPLATE, 84 MYBB_GENERAL, 85 MYBB_NOT_INSTALLED, 86 MYBB_NOT_UPGRADED, 87 MYBB_INSTALL_DIR_EXISTS, 88 MYBB_SQL_LOAD_ERROR, 89 MYBB_CACHE_NO_WRITE, 90 MYBB_CACHEHANDLER_LOAD_ERROR, 91 ); 92 93 /** 94 * Array of all of the error types to ignore 95 * 96 * @var array 97 */ 98 public $ignore_types = array( 99 E_DEPRECATED, 100 E_NOTICE, 101 E_USER_NOTICE, 102 ); 103 104 /** 105 * String of all the warnings collected 106 * 107 * @var string 108 */ 109 public $warnings = ""; 110 111 /** 112 * Is MyBB in an errornous state? (Have we received an error?) 113 * 114 * @var boolean 115 */ 116 public $has_errors = false; 117 118 /** 119 * Display errors regardless of related settings (useful during initialization stage) 120 * 121 * @var boolean 122 */ 123 public $force_display_errors = false; 124 125 /** 126 * Initializes the error handler 127 * 128 */ 129 function __construct() 130 { 131 if(version_compare(PHP_VERSION, '7.0', '<')) 132 { 133 $this->error_types[E_STRICT] = 'Runtime Notice'; 134 $this->ignore_types[] = E_STRICT; 135 } 136 137 // Lets set the error handler in here so we can just do $handler = new errorHandler() and be all set up. 138 $error_types = E_ALL; 139 foreach($this->ignore_types as $bit) 140 { 141 $error_types = $error_types & ~$bit; 142 } 143 error_reporting($error_types); 144 set_error_handler(array(&$this, "error_callback"), $error_types); 145 } 146 147 /** 148 * Passes relevant arguments for error processing. 149 * 150 * @param string $type The error type (i.e. E_ERROR, E_FATAL) 151 * @param string $message The error message 152 * @param string $file The error file 153 * @param integer $line The error line 154 */ 155 function error_callback($type, $message, $file=null, $line=0) 156 { 157 return $this->error($type, $message, $file, $line); 158 } 159 160 /** 161 * Processes an error. 162 * 163 * @param string $type The error type (i.e. E_ERROR, E_FATAL) 164 * @param string $message The error message 165 * @param string $file The error file 166 * @param integer $line The error line 167 * @param boolean $allow_output Whether or not output is permitted 168 * @return boolean True if parsing was a success, otherwise assume a error 169 */ 170 function error($type, $message, $file=null, $line=0, $allow_output=true) 171 { 172 global $mybb; 173 174 // Error reporting turned off for this type 175 if((error_reporting() & $type) == 0) 176 { 177 return true; 178 } 179 180 if(in_array($type, $this->ignore_types)) 181 { 182 return true; 183 } 184 185 if(isset($file)) 186 { 187 $file = str_replace(MYBB_ROOT, "", $file); 188 } 189 else 190 { 191 $file = ""; 192 } 193 194 if($type == MYBB_SQL || strpos(strtolower($this->error_types[$type]), 'warning') === false) 195 { 196 $this->has_errors = true; 197 } 198 199 // For some reason in the installer this setting is set to "<" 200 $accepted_error_types = array('both', 'error', 'warning', 'none'); 201 if(isset($mybb->settings['errortypemedium']) && in_array($mybb->settings['errortypemedium'], $accepted_error_types)) 202 { 203 $errortypemedium = $mybb->settings['errortypemedium']; 204 } 205 else 206 { 207 $errortypemedium = "none"; 208 } 209 210 if(isset($mybb->settings['errorlogmedium'])) 211 { 212 $errorlogmedium = $mybb->settings['errorlogmedium']; 213 } 214 else 215 { 216 $errorlogmedium = 'none'; 217 } 218 219 if(defined("IN_TASK")) 220 { 221 global $task; 222 223 require_once MYBB_ROOT."inc/functions_task.php"; 224 225 $filestr = ''; 226 if($file) 227 { 228 $filestr = " - Line: $line - File: $file"; 229 } 230 231 add_task_log($task, "{$this->error_types[$type]} - [$type] ".var_export($message, true)."{$filestr}"); 232 } 233 234 // Saving error to log file. 235 if($errorlogmedium == "log" || $errorlogmedium == "both") 236 { 237 $this->log_error($type, $message, $file, $line); 238 } 239 240 // Are we emailing the Admin a copy? 241 if($errorlogmedium == "mail" || $errorlogmedium == "both") 242 { 243 $this->email_error($type, $message, $file, $line); 244 } 245 246 if($allow_output === true) 247 { 248 // SQL Error 249 if($type == MYBB_SQL) 250 { 251 $this->output_error($type, $message, $file, $line); 252 } 253 // PHP Error 254 elseif(strpos(strtolower($this->error_types[$type]), 'warning') === false) 255 { 256 $this->output_error($type, $message, $file, $line); 257 } 258 // PHP Warning 259 elseif(in_array($errortypemedium, array('warning', 'both'))) 260 { 261 global $templates; 262 263 $warning = "<strong>{$this->error_types[$type]}</strong> [$type] $message - Line: $line - File: $file PHP ".PHP_VERSION." (".PHP_OS.")<br />\n"; 264 if(is_object($templates) && method_exists($templates, "get") && !defined("IN_ADMINCP")) 265 { 266 $this->warnings .= $warning; 267 $this->warnings .= $this->generate_backtrace(); 268 } 269 else 270 { 271 echo "<div class=\"php_warning\">{$warning}".$this->generate_backtrace()."</div>"; 272 } 273 } 274 } 275 276 return true; 277 } 278 279 /** 280 * Returns all the warnings 281 * 282 * @return string|bool The warnings or false if no warnings exist 283 */ 284 function show_warnings() 285 { 286 global $lang, $templates; 287 288 if(empty($this->warnings)) 289 { 290 return false; 291 } 292 293 // Incase a template fails and we're receiving a blank page. 294 if(MANUAL_WARNINGS) 295 { 296 echo $this->warnings."<br />"; 297 } 298 299 if(!$lang->warnings) 300 { 301 $lang->warnings = "The following warnings occurred:"; 302 } 303 304 $template_exists = false; 305 306 if(!is_object($templates) || !method_exists($templates, 'get')) 307 { 308 if(@file_exists(MYBB_ROOT."inc/class_templates.php")) 309 { 310 @require_once MYBB_ROOT."inc/class_templates.php"; 311 $templates = new templates; 312 $template_exists = true; 313 } 314 } 315 else 316 { 317 $template_exists = true; 318 } 319 320 $warning = ''; 321 if($template_exists == true) 322 { 323 eval("\$warning = \"".$templates->get("php_warnings")."\";"); 324 } 325 326 return $warning; 327 } 328 329 /** 330 * Triggers a user created error 331 * Example: $error_handler->trigger("Some Warning", E_USER_ERROR); 332 * 333 * @param string $message Message 334 * @param string|int $type Type 335 */ 336 function trigger($message="", $type=E_USER_ERROR) 337 { 338 global $lang; 339 340 if(!$message) 341 { 342 if(isset($lang->unknown_user_trigger)) 343 { 344 $message = $lang->unknown_user_trigger; 345 } 346 else 347 { 348 $message .= 'An unknown error has been triggered.'; 349 } 350 } 351 352 if(in_array($type, $this->mybb_error_types)) 353 { 354 $this->error($type, $message); 355 } 356 else 357 { 358 trigger_error($message, $type); 359 } 360 } 361 362 /** 363 * Logs the error in the specified error log file. 364 * 365 * @param string $type Warning type 366 * @param string $message Warning message 367 * @param string $file Warning file 368 * @param integer $line Warning line 369 */ 370 function log_error($type, $message, $file, $line) 371 { 372 global $mybb; 373 374 if($type == MYBB_SQL) 375 { 376 $message = "SQL Error: {$message['error_no']} - {$message['error']}\nQuery: {$message['query']}"; 377 } 378 379 // Do not log something that might be executable 380 $message = str_replace('<?', '< ?', $message); 381 382 $back_trace = $this->generate_backtrace(false, 2); 383 384 if($back_trace) 385 { 386 $back_trace = "\t<back_trace>{$back_trace}</back_trace>\n"; 387 } 388 389 $error_data = "<error>\n"; 390 $error_data .= "\t<dateline>".TIME_NOW."</dateline>\n"; 391 $error_data .= "\t<script>".$file."</script>\n"; 392 $error_data .= "\t<line>".$line."</line>\n"; 393 $error_data .= "\t<type>".$type."</type>\n"; 394 $error_data .= "\t<friendly_type>".$this->error_types[$type]."</friendly_type>\n"; 395 $error_data .= "\t<message>".$message."</message>\n"; 396 $error_data .= $back_trace; 397 $error_data .= "</error>\n\n"; 398 399 if( 400 isset($mybb->settings['errorloglocation']) && 401 trim($mybb->settings['errorloglocation']) != "" && 402 substr($mybb->settings['errorloglocation'], -4) !== '.php' 403 ) 404 { 405 @error_log($error_data, 3, $mybb->settings['errorloglocation']); 406 } 407 else 408 { 409 @error_log($error_data, 0); 410 } 411 } 412 413 /** 414 * Emails the error in the specified error log file. 415 * 416 * @param string $type Warning type 417 * @param string $message Warning message 418 * @param string $file Warning file 419 * @param integer $line Warning line 420 * @return bool returns false if no admin email is set 421 */ 422 function email_error($type, $message, $file, $line) 423 { 424 global $mybb; 425 426 if(empty($mybb->settings['adminemail'])) 427 { 428 return false; 429 } 430 431 if($type == MYBB_SQL) 432 { 433 $message = "SQL Error: {$message['error_no']} - {$message['error']}\nQuery: {$message['query']}"; 434 } 435 436 if(function_exists('debug_backtrace')) 437 { 438 ob_start(); 439 debug_print_backtrace(); 440 $trace = ob_get_contents(); 441 ob_end_clean(); 442 443 $back_trace = "\nBack Trace: {$trace}"; 444 } 445 else 446 { 447 $back_trace = ''; 448 } 449 450 $message = "Your copy of MyBB running on {$mybb->settings['bbname']} ({$mybb->settings['bburl']}) has experienced an error. Details of the error include:\n---\nType: $type\nFile: $file (Line no. $line)\nMessage\n$message{$back_trace}"; 451 452 @my_mail($mybb->settings['adminemail'], "MyBB error on {$mybb->settings['bbname']}", $message, $mybb->settings['adminemail']); 453 454 return true; 455 } 456 457 /** 458 * @param string $type 459 * @param string $message 460 * @param string $file 461 * @param int $line 462 */ 463 function output_error($type, $message, $file, $line) 464 { 465 global $mybb, $parser, $lang; 466 467 if(isset($mybb->settings['bbname'])) 468 { 469 $bbname = $mybb->settings['bbname']; 470 } 471 else 472 { 473 $bbname = "MyBB"; 474 } 475 476 // For some reason in the installer this setting is set to "<" 477 $accepted_error_types = array('both', 'error', 'warning', 'none'); 478 if(isset($mybb->settings['errortypemedium']) && in_array($mybb->settings['errortypemedium'], $accepted_error_types)) 479 { 480 $errortypemedium = $mybb->settings['errortypemedium']; 481 } 482 else 483 { 484 $errortypemedium = "none"; 485 } 486 487 $show_details = ( 488 $this->force_display_errors || 489 in_array($errortypemedium, array('both', 'error')) || 490 defined("IN_INSTALL") || 491 defined("IN_UPGRADE") 492 ); 493 494 if($type == MYBB_SQL) 495 { 496 $title = "MyBB SQL Error"; 497 $error_message = "<p>MyBB has experienced an internal SQL error and cannot continue.</p>"; 498 if($show_details) 499 { 500 $message['query'] = htmlspecialchars_uni($message['query']); 501 $message['error'] = htmlspecialchars_uni($message['error']); 502 $error_message .= "<dl>\n"; 503 $error_message .= "<dt>SQL Error:</dt>\n<dd>{$message['error_no']} - {$message['error']}</dd>\n"; 504 if($message['query'] != "") 505 { 506 $error_message .= "<dt>Query:</dt>\n<dd>{$message['query']}</dd>\n"; 507 } 508 $error_message .= "</dl>\n"; 509 } 510 } 511 else 512 { 513 $title = "MyBB Internal Error"; 514 $error_message = "<p>MyBB has experienced an internal error and cannot continue.</p>"; 515 if($show_details) 516 { 517 $error_message .= "<dl>\n"; 518 $error_message .= "<dt>Error Type:</dt>\n<dd>{$this->error_types[$type]} ($type)</dd>\n"; 519 $error_message .= "<dt>Error Message:</dt>\n<dd>{$message}</dd>\n"; 520 if(!empty($file)) 521 { 522 $error_message .= "<dt>Location:</dt><dd>File: {$file}<br />Line: {$line}</dd>\n"; 523 if(!@preg_match('#config\.php|settings\.php#', $file) && @file_exists($file)) 524 { 525 $code_pre = @file($file); 526 527 $code = ""; 528 529 if(isset($code_pre[$line-4])) 530 { 531 $code .= $line-3 . ". ".$code_pre[$line-4]; 532 } 533 534 if(isset($code_pre[$line-3])) 535 { 536 $code .= $line-2 . ". ".$code_pre[$line-3]; 537 } 538 539 if(isset($code_pre[$line-2])) 540 { 541 $code .= $line-1 . ". ".$code_pre[$line-2]; 542 } 543 544 $code .= $line . ". ".$code_pre[$line-1]; // The actual line. 545 546 if(isset($code_pre[$line])) 547 { 548 $code .= $line+1 . ". ".$code_pre[$line]; 549 } 550 551 if(isset($code_pre[$line+1])) 552 { 553 $code .= $line+2 . ". ".$code_pre[$line+1]; 554 } 555 556 if(isset($code_pre[$line+2])) 557 { 558 $code .= $line+3 . ". ".$code_pre[$line+2]; 559 } 560 561 unset($code_pre); 562 563 $parser_exists = false; 564 565 if(!is_object($parser) || !method_exists($parser, 'mycode_parse_php')) 566 { 567 if(@file_exists(MYBB_ROOT."inc/class_parser.php")) 568 { 569 @require_once MYBB_ROOT."inc/class_parser.php"; 570 $parser = new postParser; 571 $parser_exists = true; 572 } 573 } 574 else 575 { 576 $parser_exists = true; 577 } 578 579 if($parser_exists) 580 { 581 $code = $parser->mycode_parse_php($code, true); 582 } 583 else 584 { 585 $code = @nl2br($code); 586 } 587 588 $error_message .= "<dt>Code:</dt><dd>{$code}</dd>\n"; 589 } 590 } 591 $backtrace = $this->generate_backtrace(); 592 if($backtrace && !in_array($type, $this->mybb_error_types)) 593 { 594 $error_message .= "<dt>Backtrace:</dt><dd>{$backtrace}</dd>\n"; 595 } 596 $error_message .= "</dl>\n"; 597 } 598 } 599 600 if(isset($lang->settings['charset'])) 601 { 602 $charset = $lang->settings['charset']; 603 } 604 else 605 { 606 $charset = 'UTF-8'; 607 } 608 609 $contact_site_owner = ''; 610 $is_in_contact = defined('THIS_SCRIPT') && THIS_SCRIPT === 'contact.php'; 611 if( 612 !empty($mybb->settings['contactlink']) && 613 ( 614 !empty($mybb->settings['contact']) && 615 !$is_in_contact && 616 ( 617 $mybb->settings['contactlink'] == "contact.php" && 618 ( 619 !isset($mybb->user['uid']) || 620 ($mybb->settings['contact_guests'] != 1 && $mybb->user['uid'] == 0) || 621 $mybb->user['uid'] > 0 622 ) 623 ) || 624 $mybb->settings['contactlink'] != "contact.php" 625 ) 626 ) 627 { 628 if( 629 !my_validate_url($mybb->settings['contactlink'], true, true) && 630 my_substr($mybb->settings['contactlink'], 0, 7) != 'mailto:' 631 ) 632 { 633 $mybb->settings['contactlink'] = $mybb->settings['bburl'].'/'.$mybb->settings['contactlink']; 634 } 635 636 $contact_site_owner = <<<HTML 637 If this problem persists, please <a href="{$mybb->settings['contactlink']}">contact the site owner</a>. 638 HTML; 639 } 640 641 $additional_name = ''; 642 $docs_link = 'https://docs.mybb.com'; 643 $common_issues_link = 'https://docs.mybb.com/1.8/faq/'; 644 $support_link = 'https://community.mybb.com/'; 645 646 if(isset($lang->settings['docs_link'])) 647 { 648 $docs_link = $lang->settings['docs_link']; 649 } 650 651 if(isset($lang->settings['common_issues_link'])) 652 { 653 $common_issues_link = $lang->settings['common_issues_link']; 654 } 655 656 if(isset($lang->settings['support_link'])) 657 { 658 $support_link = $lang->settings['support_link']; 659 } 660 661 662 if(isset($lang->settings['additional_name'])) 663 { 664 $additional_name = $lang->settings['additional_name']; 665 } 666 667 $contact = <<<HTML 668 <p> 669 <strong>If you're a visitor of this website</strong>, please wait a few minutes and try again.{$contact_site_owner} 670 </p> 671 672 <p> 673 <strong>If you are the site owner</strong>, please check the <a href="{$docs_link}">MyBB{$additional_name} Documentation</a> for help resolving <a href="{$common_issues_link}">common issues</a>, or get technical help on the <a href="{$support_link}">MyBB{$additional_name} Community Forums</a>. 674 </p> 675 HTML; 676 677 if(!headers_sent() && !defined("IN_INSTALL") && !defined("IN_UPGRADE")) 678 { 679 @header('HTTP/1.1 503 Service Temporarily Unavailable'); 680 @header('Status: 503 Service Temporarily Unavailable'); 681 @header('Retry-After: 1800'); 682 @header("Content-type: text/html; charset={$charset}"); 683 684 $file_name = basename($_SERVER['SCRIPT_FILENAME']); 685 if(function_exists('htmlspecialchars_uni')) 686 { 687 $file_name = htmlspecialchars_uni($file_name); 688 } 689 else 690 { 691 $file_name = htmlspecialchars($file_name); 692 } 693 694 echo <<<EOF 695 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> 696 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"> 697 <head profile="http://gmpg.org/xfn/11"> 698 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 699 <title>{$bbname} - Internal Error</title> 700 <style type="text/css"> 701 body { background: #efefef; color: #000; font-family: Tahoma,Verdana,Arial,Sans-Serif; font-size: 12px; text-align: center; line-height: 1.4; } 702 a:link { color: #026CB1; text-decoration: none; } 703 a:visited { color: #026CB1; text-decoration: none; } 704 a:hover, a:active { color: #000; text-decoration: underline; } 705 #container { width: 600px; padding: 20px; background: #fff; border: 1px solid #e4e4e4; margin: 100px auto; text-align: left; -moz-border-radius: 6px; -webkit-border-radius: 6px; border-radius: 6px; } 706 h1 { margin: 0; background: url({$file_name}?action=mybb_logo) no-repeat; height: 82px; width: 248px; } 707 #content { border: 1px solid #026CB1; background: #fff; -moz-border-radius: 3px; -webkit-border-radius: 3px; border-radius: 3px; } 708 h2 { font-size: 12px; padding: 4px; background: #026CB1; color: #fff; margin: 0; } 709 .invisible { display: none; } 710 #error { padding: 6px; } 711 #footer { font-size: 12px; border-top: 1px dotted #DDDDDD; padding-top: 10px; } 712 dt { font-weight: bold; } 713 </style> 714 </head> 715 <body> 716 <div id="container"> 717 <div id="logo"> 718 <h1><a href="https://mybb.com/" title="MyBB"><span class="invisible">MyBB</span></a></h1> 719 </div> 720 721 <div id="content"> 722 <h2>{$title}</h2> 723 724 <div id="error"> 725 {$error_message} 726 <p id="footer">{$contact}</p> 727 </div> 728 </div> 729 </div> 730 </body> 731 </html> 732 EOF; 733 } 734 else 735 { 736 echo <<<EOF 737 <style type="text/css"> 738 #mybb_error_content { border: 1px solid #026CB1; background: #fff; -moz-border-radius: 3px; -webkit-border-radius: 3px; border-radius: 3px; } 739 #mybb_error_content a:link { color: #026CB1; text-decoration: none; } 740 #mybb_error_content a:visited { color: #026CB1; text-decoration: none; } 741 #mybb_error_content a:hover, a:active { color: #000; text-decoration: underline; } 742 #mybb_error_content h2 { font-size: 12px; padding: 4px; background: #026CB1; color: #fff; margin: 0; border-bottom: none; } 743 #mybb_error_error { padding: 6px; } 744 #mybb_error_footer { font-size: 12px; border-top: 1px dotted #DDDDDD; padding-top: 10px; } 745 #mybb_error_content dt { font-weight: bold; } 746 </style> 747 <div id="mybb_error_content"> 748 <h2>{$title}</h2> 749 <div id="mybb_error_error"> 750 {$error_message} 751 <p id="mybb_error_footer">{$contact}</p> 752 </div> 753 </div> 754 EOF; 755 } 756 757 exit(1); 758 } 759 760 /** 761 * Generates a backtrace if the server supports it. 762 * 763 * @return string The generated backtrace 764 */ 765 function generate_backtrace($html=true, $strip=1) 766 { 767 $backtrace = ''; 768 if(function_exists("debug_backtrace")) 769 { 770 $trace = debug_backtrace(1<<1 /* DEBUG_BACKTRACE_IGNORE_ARGS */); 771 772 if($html) 773 { 774 $backtrace = "<table style=\"width: 100%; margin: 10px 0; border: 1px solid #aaa; border-collapse: collapse; border-bottom: 0;\" cellspacing=\"0\" cellpadding=\"0\" border=\"0\">\n"; 775 $backtrace .= "<thead><tr>\n"; 776 $backtrace .= "<th style=\"border-bottom: 1px solid #aaa; background: #ccc; padding: 4px; text-align: left; font-size: 11px;\">File</th>\n"; 777 $backtrace .= "<th style=\"border-bottom: 1px solid #aaa; background: #ccc; padding: 4px; text-align: left; font-size: 11px;\">Line</th>\n"; 778 $backtrace .= "<th style=\"border-bottom: 1px solid #aaa; background: #ccc; padding: 4px; text-align: left; font-size: 11px;\">Function</th>\n"; 779 $backtrace .= "</tr></thead>\n<tbody>\n"; 780 } 781 782 // Strip off calls from trace 783 $trace = array_slice($trace, $strip); 784 785 $i = 0; 786 787 foreach($trace as $call) 788 { 789 if(empty($call['file'])) $call['file'] = "[PHP]"; 790 if(empty($call['line'])) $call['line'] = " "; 791 if(!empty($call['class'])) $call['function'] = $call['class'].$call['type'].$call['function']; 792 $call['file'] = str_replace(MYBB_ROOT, "/", $call['file']); 793 794 if($html) 795 { 796 $backtrace .= "<tr>\n"; 797 $backtrace .= "<td style=\"font-size: 11px; padding: 4px; border-bottom: 1px solid #ccc;\">{$call['file']}</td>\n"; 798 $backtrace .= "<td style=\"font-size: 11px; padding: 4px; border-bottom: 1px solid #ccc;\">{$call['line']}</td>\n"; 799 $backtrace .= "<td style=\"font-size: 11px; padding: 4px; border-bottom: 1px solid #ccc;\">{$call['function']}</td>\n"; 800 $backtrace .= "</tr>\n"; 801 } 802 else 803 { 804 $backtrace .= "#{$i} {$call['function']}() called at [{$call['file']}:{$call['line']}]\n"; 805 } 806 807 $i++; 808 } 809 810 if($html) 811 { 812 $backtrace .= "</tbody></table>\n"; 813 } 814 } 815 return $backtrace; 816 } 817 }
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